All categories

3 years ago

Select the correct answer

Physics

1 answer:

stepladder [879]3 years ago

8 0

The answer is balloon c is either positively negative or not

You might be interested in

_____ has a longer wavelength than _____.

victus00 [196]

Answer:

Explanation:

its b ok ok bye

7 0

3 years ago

n a ballistics test, a potato gun shoots a 0.34 kg potato into a 5.0 kg catching cart. The cart recoils at 3.7 m/s after catchin

Gala2k [10]

The initial velocity of the potato is 54.41 m/s.

The given parameters:

Mass of the potato, m = 0.34 kg
Mass of the cart, m = 5.0 kg
Velocity of the recoil, u₂ = 3.7 m/s

The initial velocity of the potato is calculated by applying the principle of conservation of energy as follows;

$m_1u_1 = m_2 u_2\\\\u_1 = \frac{m_2 u_2}{m_1} \\\\u_1 = \frac{5 \times 3.7}{0.34} \\\\u_1 = 54.41 \ m/s$

Thus, the initial velocity of the potato is 54.41 m/s.

Learn more about conservation of linear momentum here: brainly.com/question/7538238

6 0

3 years ago

A plane electromagnetic wave varies sinusoidally at 90.0 MHz as it travels along the x direction. The peak value of the electric

mr_godi [17]

Answer:

Explanation:

frequency n = 90 x 10⁶ Hz .

time period T = 1 / n

= 1 / 90 x 10⁶

= 1.11 x 10⁻⁸ S.

wavelength = velocity of light / frequency

= 3 x 10⁸ / 90 x 10⁶

= 3.33 m

maximum value of the magnetic field. ( B₀ )

E₀ / B₀ = c where E₀ and B₀ are maximum electric and magnetic field .

E₀ / c= B₀

200/ 3 x 10⁸

= 66.67 x 10⁻⁸ T .

expressions in SI units for the space and time variations of the electric field

$E=E_{0y}sin(2\pi nt - \frac{2\pi x}{\lambda} )$

$E=200sin(180\times 10^6\pi t - \frac{2\pi x}{\lambda} )$ N/C

$B=B_{0z}sin(2\pi nt - \frac{2\pi x}{\lambda} )$

$B=66.67\times 10^{-8}sin(180\times 10^6\pi t - \frac{2\pi x}{\lambda} )$ T

4 0

4 years ago

What is the unit for distance

Yakvenalex [24]

Answer:

Meter,Miles,Kilometers

Explanation:

so on

3 0

3 years ago

Read 2 more answers

Brownian motion cannot be detected in colloids. True or false?

miskamm [114]

Brownian motion is the random movement of colloidal particles suspended in a fluid. It is caused by random collisions of the molecules in the fluid medium. The particles in the solution or colloids are in constant random movement. A colloid has properties boundary to a homogenous and heterogeneous mixture. However in Brownian movement, the larger the size of a particle, the lesser its motion and the smaller the size of the particle, the higher is motion. Colloids in general have larger particle size and therefore it Brownian motion is sluggish. The statement is false.

6 0

3 years ago